EP0416610A1 - Toolholder for a machine tool, especially for turning machines, with interchangeable tool holder - Google Patents

Toolholder for a machine tool, especially for turning machines, with interchangeable tool holder Download PDF

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Publication number
EP0416610A1
EP0416610A1 EP90117174A EP90117174A EP0416610A1 EP 0416610 A1 EP0416610 A1 EP 0416610A1 EP 90117174 A EP90117174 A EP 90117174A EP 90117174 A EP90117174 A EP 90117174A EP 0416610 A1 EP0416610 A1 EP 0416610A1
Authority
EP
European Patent Office
Prior art keywords
tool
tool holder
tool carrier
turret
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90117174A
Other languages
German (de)
French (fr)
Other versions
EP0416610B1 (en
Inventor
Willi Ströbele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Traub AG
Original Assignee
Traub AG
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Filing date
Publication date
Application filed by Traub AG filed Critical Traub AG
Publication of EP0416610A1 publication Critical patent/EP0416610A1/en
Application granted granted Critical
Publication of EP0416610B1 publication Critical patent/EP0416610B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B23B29/12—Special arrangements on tool holders
    • B23B29/20—Special arrangements on tool holders for placing same by shanks in sleeves of a turret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
    • B23B29/32—Turrets adjustable by power drive, i.e. turret heads
    • B23B29/323—Turrets with power operated angular positioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/045—Angle drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2220/00—Machine tool components
    • B23Q2220/002—Tool turrets

Definitions

  • the invention relates to a tool carrier arrangement, in particular for lathes a tool carrier, in particular a turret head, which has a plurality of clamping surfaces between two end faces, each of which has an insertion hole, - Several interchangeable tool holders, each having a housing with a contact surface for contacting one of the clamping surfaces and a shaft for insertion into each of the insertion holes, and - Shank clamps, each assigned to one of the insertion holes and designed to tighten an inserted shaft.
  • Such combinations of a tool carrier with one or more tool holders are known from the standard sheet DIN 69 880 from September 1983.
  • the shaft of each tool holder is toothed in the manner of a rack and a correspondingly toothed bolt which is guided in the tool holder is provided as the shaft tensioner.
  • the tool carrier has a bore parallel to the insertion hole on each of its clamping surfaces, from which a fitting sleeve protrudes.
  • the tool holders have one to their shank in their housing parallel bore into which the associated adapter sleeve engages. In this way, each tool holder is fixed in a certain position, but only with an accuracy that does not meet higher requirements.
  • the invention has for its object to develop a tool holder and at least one associated tool holder of the type described such that the tool holder can be fixed in any insertion hole of the tool holder with particularly great and reproducible accuracy after replacement in at least one predetermined angular position of its shaft.
  • the object is achieved on the basis of a tool carrier arrangement of the type described in the introduction in that at least one of the tool holders has two lateral lugs, each of which grips over an end face edge of the tool carrier and is supported on it, and that an adjusting member is mounted on each of the lateral lugs , which can be tensioned against the adjacent end face edge of the tool carrier and is arranged in such a way that, when tensioned, it exerts an eccentric reaction force on the tool holder with respect to the associated shank.
  • the end face edges of the tool carrier in their regions interacting with the setting members are converging inclined surfaces towards the clamping surfaces. This results in the possibility of adjusting the setting members for repeated uses of the associated tool holder in such a way that they have a precisely defined definition against the outwardly converging inclined surfaces of the end face edges Be preloaded when the shaft of the tool holder is axially clamped in an insertion hole until the contact surface on the housing rests in the intended manner on the associated clamping surface of the tool carrier. In this way, any rotation of the tool holder can be switched off once and for all.
  • the adjusters are preferably screws; but it is also possible to use eccentrics or the like.
  • Claim 4 describes a further advantageous embodiment of the invention.
  • the tool turret shown has a turret body 10 which is attached to a slide 12 of a conventional cross slide arrangement of an automatic lathe; This means that the turret body 10 can be adjusted with the slide 12 along two mutually perpendicular axes X and Z, of which the axis Z represents the axis direction of the main spindle of the automatic lathe.
  • a tool carrier in the form of a turret head 14 is mounted on the turret body 10 and has an internal toothing 15 and engages in the usual way by means of one the pinion, not shown, is rotatable about a turret axis 16 when it is in a switch position.
  • the turret 14 can also be moved in the usual manner, for example hydraulically, along the turret axis 16 into the holding position shown, in which a face toothing 17 formed on it engages in a complementary face toothing of the turret body 10.
  • the turret head 14 has a free end face 18 and an annular end face 20 facing the turret body 10, which have flat end face edges 22 and 24 which converge radially outward.
  • the circumference of the turret 14 is composed of several polygonal, in the example shown twelve, flat clamping surfaces 26.
  • the turret axis 16 extends parallel to the Z axis of the lathe, as is usual with drum turrets; the clamping surfaces 26 are, however, arranged parallel to the turret axis 16, as is usual with star turrets.
  • the tool turret according to the invention can also be designed in the manner of a crown turret; the turret axis 16 extends at an angle of, for example, 30 ° to the Z axis, and each of the clamping surfaces is inclined at an angle that is complementary to this angle with respect to the turret axis 16.
  • a cylindrical insertion hole 28 is made in the turret 14 in the middle of each clamping surface 26.
  • the geometric axes of all insertion holes 28 intersect the turret axis 16 at a right angle.
  • a bore 32 is arranged in the turret 14, which is connected to a coolant pump, not shown. This promotes, for example, a cutting emulsion of the usual composition.
  • the tool holder 34 has a substantially cuboid housing 36 with a flat contact surface 38, from which a shaft 40 extends in the middle and at right angles.
  • the shaft 40 fits into each of the insertion holes 28 of the turret 14; in the assembled state of the tool holder 34, its contact surface 38 bears on the clamping surface 26 all around the respective insertion hole 28.
  • a fastening bore 42 is arranged tangentially to each insertion hole 28 in the turret 14; in this a wedge-shaped bolt 46 is fastened by means of a clamping screw 44, which is toothed and engages in a rack-like toothing 48 of the relevant shaft 40.
  • the shank 40 of the tool holder 34 shown has a further, completely identical toothing 48 diametrically opposite the toothing 48, that is to say offset from it by 1800.
  • the tool holder 34 can be attached to the turret 14 either in the position shown in FIG. 1 or in a position rotated by 180 ° with respect to the axis of the selected insertion hole 28.
  • Two coolant channels 49 extend from the contact surface 38 of the housing 36 and are diametrically opposite one another with respect to the shaft 40.
  • the coolant channels 49 are arranged so that in each of the two possible positions of the tool holder 34 one of these coolant channels 49 is connected to the bore 32 which opens into the associated clamping surface 26.
  • a coolant nozzle 50 which is screwed into the housing 36, is connected to the two coolant channels 49.
  • the coolant nozzle 50 can thus be supplied with a coolant in each of the two positions of the tool holder 34 via the associated bore 32.
  • a fitting sleeve 51 can be inserted which, depending on the arrangement of the tool holder 34, engages in one or the other of its two coolant channels 49 and thereby secures the tool holder 34 against rotation.
  • a spindle 52 is mounted coaxially with the shank 40 and carries a gear 53 and 54 at both ends thereof; in the example shown, both are bevel gears.
  • a clamping device 56 is mounted transversely to the spindle 52 in the housing 36; whose axis 58 intersects the axis of the shaft 40 at a right angle.
  • a bevel gear 60 which meshes with the bevel gear 54, is formed on the clamping device 56.
  • a tool 62 in the example shown a drill, is clamped in the clamping device 56.
  • the attachment of the shaft 40 by means of the bolt 46 is sufficient to hold the contact surface 38 of the tool holder 34 firmly against the selected mounting surface 26 of the turret 14; however, there is still no sufficient guarantee for a precise alignment of the tool 62.
  • the fitting sleeve 51 should therefore be inserted in the bore 32, which engages with a close fit in a corresponding bore in the housing 36 of the tool holder 34 and this in a predetermined angular position with respect to the axis 30 should set.
  • the adapter sleeve 51 is not particularly resistant to transverse forces and bending moments.
  • the adapter sleeve 51 is supplemented by the following measures, which make it possible to set the tool holder 34, and thus the tool 62, with the greatest accuracy and to hold it securely.
  • the housing 36 of the tool holder 34 has on its two end faces 64, each with one of the end faces 18 and the turret 14 at least approximately in a common plane, a lateral extension 66, from which an adjusting member 68 against the adjacent end face edge 22 or 24 of the turret 14 can be clamped.
  • the setting members 68 are screws which are screwed into the relevant extension 66 at right angles to the associated end face edge 22 or 24.
  • Each extension 66 has a resilient projection 70, through which the associated adjusting member 68 is screwed, and which is held under axial tension by a grub screw 71, so that the adjusting member 68 is secured against unintentional rotation.
  • the lugs 66 can be integrally formed on the housing 36; in the example shown, however, there are separate components which are each fastened to the housing 36 with a screw 72 and each have a foot rib 74 which engages in a complementary groove 76 on the relevant end face 64 of the housing 36, as a result of which the attachment 66 is attached to it is prevented from rotating about the screw 72.
  • the two side lugs 66 are arranged on one and the same side of the common plane of the two axes 30 and 58. Therefore, tensioning the right setting member 68 in FIG. 3 causes the tool holder 34 to pivot clockwise, while tensioning the left setting member 68 in FIG. 3 causes it to pivot counterclockwise. With the setting members 68 of both side lugs 66, the tool holder 34 can thus be adjusted so that the tool 62 is aligned exactly in the desired manner, in particular parallel to the Z axis.
  • the radially inner gear 53 of the spindle 52 with respect to the turret 14 meshes in an operating position according to FIGS. 1 and 6 with a gear 78, also designed as a bevel gear, at one end of a drive shaft 80, which is mounted in the turret body 10 parallel to the turret axis 16 and over a helical gear 82 formed at its other end can be driven by a central gear 84, which is also helically toothed.
  • the central gear 84 is on a shaft journal 86 of the turret Head 14 mounted and driven by a drive, not shown, via an articulated shaft 88 and a pinion 90 mounted in the turret body.
  • the drive shaft 80 is axially displaceable together with a ring 92 in the turret body 10.
  • a ring 92 diametrically opposite each other with respect to the drive shaft 80, two pistons 94 are fastened, each of which works in a cylinder bore 96.
  • the two cylinder bores 96 each contain a spring 98 which strives to hold the pistons 94, and thus also the drive shaft 80, in their position shown, in which the two gear wheels 53 and 78 are in engagement with one another, that is to say the spindle 52 the drive shaft 80 is coupled. In this position, the drive shaft 80 is held in operation in that a fluid under pressure is introduced into the two cylinder bores 96.
  • An adjusting screw 100 which is assigned to a sensor 102, is fastened to one of the two pistons 94. Only when the drive shaft 80 assumes its engaged position does the sensor 102 emit a signal which allows the fluid to flow into the two cylinder bores 96 under pressure via a valve (not shown). The indentation itself is therefore only effected by the relatively weak springs 98.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)

Abstract

A tool support, in particular a turret head (14), has several mounting surfaces (26) between two end faces (18, 20). An insertion hole (28) leads off from each mounting surface (26). Several interchangeable tool holders (34) are allocated to the tool support (14). Each tool holder (34) has a housing (36) with a bearing surface (38) for placing against one of the mounting surfaces (26) as well as a shank (40) for inserting in one of the insertion holes (28). Allocated to each of the insertion holes (28) is a shank tightener (44, 46) which is designed for tightening an inserted shank (40). At least one of the tool holders (34) has two lateral extensions (66) which each overlap an end-face margin (22, 24) of the tool support (14) and are supported on it. Mounted on each of these extensions (66) is an adjusting member (68) which can be clamped against the adjacent end-face margin (22, 24) of the tool support (14) and in the clamped state exerts a reaction force on the tool holder (34), which reaction force is eccentric with regard to the associated shank (40). <IMAGE>

Description

Die Erfindung betrifft eine Werkzeugträgeranordnung, ins­bes. für Drehmaschinen, mit
- einem Werkzeugträger, insbes. Revolverkopf, der zwischen zwei Stirnflächen mehrere Aufspannflächen aufweist, von denen je ein Einsteckloch ausgeht,
- mehreren auswechselbaren Werkzeughaltern, die je ein Gehäuse mit einer Anlagefläche zum Anlegen an eine der Aufspannflächen sowie je einen Schaft zum Einstecken in je eines der Einstecklöcher aufweisen, und
- Schaftspannern, die je einem der Einstecklöcher zugeord­net und zum Festziehen eines eingesteckten Schafts ausge­bildet sind.The invention relates to a tool carrier arrangement, in particular for lathes
a tool carrier, in particular a turret head, which has a plurality of clamping surfaces between two end faces, each of which has an insertion hole,
- Several interchangeable tool holders, each having a housing with a contact surface for contacting one of the clamping surfaces and a shaft for insertion into each of the insertion holes, and
- Shank clamps, each assigned to one of the insertion holes and designed to tighten an inserted shaft.

Solche Kombinationen eines Werkzeugträgers mit einem oder mehreren Werkzeughaltern sind aus dem Normblatt DIN 69 880 vom September 1983 bekannt. Dabei ist der Schaft jedes Werkzeughalters zahnstangenartig verzahnt, und als Schaft­spanner ist ein entsprechend verzahnter, im Werkzeugträger gefilhrter Bolzen vorgesehen. Der Werkzeugträger weist an jeder seiner Aufspannflächen eine zum Einsteckloch paral­lele Bohrung auf, aus der eine Paßhülse herausragt. Die Werkzeughalter haben in ihrem Gehäuse eine zu ihrem Schaft parallele Bohrung, in welche die zugehörige Paßhülse ein­greift. Auf diese Weise ist jeder Werkzeughalter in einer bestimmten Stellung festgelegt, jedoch nur mit einer Genauigkeit, die höheren Anforderungen nicht genügt.Such combinations of a tool carrier with one or more tool holders are known from the standard sheet DIN 69 880 from September 1983. The shaft of each tool holder is toothed in the manner of a rack and a correspondingly toothed bolt which is guided in the tool holder is provided as the shaft tensioner. The tool carrier has a bore parallel to the insertion hole on each of its clamping surfaces, from which a fitting sleeve protrudes. The tool holders have one to their shank in their housing parallel bore into which the associated adapter sleeve engages. In this way, each tool holder is fixed in a certain position, but only with an accuracy that does not meet higher requirements.

Der Erfindung liegt die Aufgabe zugrunde, einen Werkzeug­träger und mindestens einen zugehörigen Werkzeughalter der beschriebenen Gattung derart weiterzubilden, daß der Werkzeughalter mit besonders großer und auch nach dem Auswechseln reproduzierbarer Genauigkeit in mindestens einer vorbestimmten Winkelstellung ihres Schafts in einem beliebigen Einsteckloch des Werkzeugträgers festgelegt werden können.The invention has for its object to develop a tool holder and at least one associated tool holder of the type described such that the tool holder can be fixed in any insertion hole of the tool holder with particularly great and reproducible accuracy after replacement in at least one predetermined angular position of its shaft.

Die Aufgabe ist erfindungsgemäß ausgehend von einer Werk­zeugträgeranordnung der eingangs beschriebenen Gattung dadurch gelöst, daß mindestens einer der Werkzeughalter zwei seitliche Ansätze aufweist, die über je einen Stirn­flächenrand des Werkzeugträgers greifen und sich an ihm abstützen, und daß an jedem der seitlichen Ansätze ein Einstellglied gelagert ist, das gegen den benachbarten Stirnflächenrand des Werkzeugträgers spannbar und derart angeordnet ist, daß es in gespanntem Zustand eine in bezug auf den zugehörigen Schaft exzentrische Reaktionskraft auf den Werkzeughalter ausübt.The object is achieved on the basis of a tool carrier arrangement of the type described in the introduction in that at least one of the tool holders has two lateral lugs, each of which grips over an end face edge of the tool carrier and is supported on it, and that an adjusting member is mounted on each of the lateral lugs , which can be tensioned against the adjacent end face edge of the tool carrier and is arranged in such a way that, when tensioned, it exerts an eccentric reaction force on the tool holder with respect to the associated shank.

Es ist ferner zweckmäßig, wenn die Stirnflächenränder des Werkzeugträgers in ihren mit den Einstellgliedern zusam­menwirkenden Bereichen nach außen, zu den Aufspannflächen hin, konvergierende Schrägflächen sind. Daraus ergibt sich die Möglichkeit, die Einstellglieder für wiederholte Ver­wendungen des zugehörigen Werkzeughalters derart einzu­stellen, daß sie gegen die nach außen konvergierenden Schrägflächen der Stirnflächenränder in genau definierter Weise vorgespannt werden, wenn der Schaft des Werkzeug­halters in einem Einsteckloch axial festgespannt wird, bis die Anlagefläche am Gehäuse in der vorgesehenen Weise an der zugehörigen Aufspannfläche des Werkzeugträgers an­liegt. Auf diese Weise läßt sich jegliches Drehspiel des Werkzeughalters ein für allemal ausschalten.It is furthermore expedient if the end face edges of the tool carrier in their regions interacting with the setting members are converging inclined surfaces towards the clamping surfaces. This results in the possibility of adjusting the setting members for repeated uses of the associated tool holder in such a way that they have a precisely defined definition against the outwardly converging inclined surfaces of the end face edges Be preloaded when the shaft of the tool holder is axially clamped in an insertion hole until the contact surface on the housing rests in the intended manner on the associated clamping surface of the tool carrier. In this way, any rotation of the tool holder can be switched off once and for all.

Die Einstellglieder sind vorzugsweise Schrauben; möglich ist aber auch die Verwendung von Exzentern od.dgl.The adjusters are preferably screws; but it is also possible to use eccentrics or the like.

Eine weitere vorteilhafte Ausgestaltung der Erfindung be­schreibt der Anspruch 4.Claim 4 describes a further advantageous embodiment of the invention.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand schematischer Zeichnungen mit weiteren Einzelheiten erläutert. Es zeigen:

  • Fig. 1 einen Werkzeugrevolver für einen Drehautomaten, teilweise in einem axialen Schnitt,
  • Fig. 2 den Schnitt II-II in Fig. 1,
  • Fig. 3 den Schnitt III-III in Fig. 1,
  • Fig. 4 die Ansicht in Richtung des Pfeils IV in Fig. 1,
  • Fig. 5 den Schnitt V-V in Fig. 4 und
  • Fig. 6 einen vergrößerten Ausschnitt aus Fig. 1.
An embodiment of the invention is explained below with the aid of schematic drawings with further details. Show it:
  • 1 shows a tool turret for an automatic lathe, partly in an axial section,
  • 2 shows the section II-II in Fig. 1,
  • 3 shows the section III-III in Fig. 1,
  • 4 shows the view in the direction of arrow IV in FIG. 1,
  • Fig. 5 shows the section VV in Fig. 4 and
  • 6 shows an enlarged detail from FIG. 1.

Der dargestellte Werkzeugrevolver hat einen Revolverkörper 10, der an einem Schlitten 12 einer üblichen Kreuzschlit­tenanordnung eines Drehautomaten befestigt ist; dies be­deutet, daß der Revolverkörper 10 mit dem Schlitten 12 längs zweier zueinander rechtwinkliger Achsen X und Z ver­stellbar ist, von denen die Achse Z die Achsrichtung der Hauptspindel des Drehautomaten darstellt. Am Revolverkör­per 10 ist ein Werkzeugträger in Gestalt eines Revolver­kopfes 14 gelagert, der eine Innenverzahnung 15 aufweist und in üblicher Weise mittels eines in diese eingreifen­ den, nicht dargestellten Ritzels um eine Revolverachse 16 drehbar ist, wenn er eine Schaltstellung einnimmt. Aus der Schaltstellung ist der Revolverkopf 14 in ebenfalls übli­cher Weise, z.B. hydraulisch, längs der Revolverachse 16 in die abgebildete Haltestellung bewegbar, in der eine an ihm ausgebildete Planverzahnung 17 in eine komplementäre Planverzahnung des Revolverkörpers 10 eingreift.The tool turret shown has a turret body 10 which is attached to a slide 12 of a conventional cross slide arrangement of an automatic lathe; This means that the turret body 10 can be adjusted with the slide 12 along two mutually perpendicular axes X and Z, of which the axis Z represents the axis direction of the main spindle of the automatic lathe. A tool carrier in the form of a turret head 14 is mounted on the turret body 10 and has an internal toothing 15 and engages in the usual way by means of one the pinion, not shown, is rotatable about a turret axis 16 when it is in a switch position. From the switch position, the turret 14 can also be moved in the usual manner, for example hydraulically, along the turret axis 16 into the holding position shown, in which a face toothing 17 formed on it engages in a complementary face toothing of the turret body 10.

Der Revolverkopf 14 hat eine freie Stirnfläche 18 und eine dem Revolverkörper 10 zugewandte ringförmige Stirnfläche 20, die radial nach außen konvergierende, ebene Stirnflä­chenränder 22 und 24 aufweisen. Der Umfang des Revolver­kopfes 14 ist polygonal aus mehreren, im dargestellten Beispiel zwölf, ebenen Aufspannflächen 26 zusammengesetzt. im dargestellten Beispiel erstreckt sich die Revolverachse 16 parallel zur Z-Achse der Drehmaschine, wie dies bei Trommelrevolvern üblich ist; die Aufspannflächen 26 sind jedoch parallel zur Revolverachse 16 angeordnet, wie dies bei Sternrevolvern üblich ist.The turret head 14 has a free end face 18 and an annular end face 20 facing the turret body 10, which have flat end face edges 22 and 24 which converge radially outward. The circumference of the turret 14 is composed of several polygonal, in the example shown twelve, flat clamping surfaces 26. In the example shown, the turret axis 16 extends parallel to the Z axis of the lathe, as is usual with drum turrets; the clamping surfaces 26 are, however, arranged parallel to the turret axis 16, as is usual with star turrets.

Der erfindungsgemäße Werkzeugrevolver kann auch in der Art eines Kronenrevolvers ausgestaltet sein; dabei erstreckt sich die Revolverachse 16 unter einem Winkel von bei­spielsweise 30° zur Z-Achse, und jede der Aufspannflächen ist unter einem zu diesem Winkel komplementären Winkel gegen die Revolverachse 16 geneigt angeordnet.The tool turret according to the invention can also be designed in the manner of a crown turret; the turret axis 16 extends at an angle of, for example, 30 ° to the Z axis, and each of the clamping surfaces is inclined at an angle that is complementary to this angle with respect to the turret axis 16.

In der Mitte jeder Aufspannfläche 26 ist ein zylindrisches Einsteckloch 28 in den Revolverkopf 14 eingearbeitet. Im dargestellten Beispiel schneiden die geometrischen Achsen sämtlicher Einstecklöcher 28 die Revolverachse 16 unter einem rechten Winkel. In einem geringen Abstand parallel zu jedem Einsteckloch 28 ist im Revolverkopf 14 eine Bohrung 32 angeordnet, die an eine nicht dargestellte Kühlmittelpumpe angeschlossen ist. Diese fördert bei­spielsweise eine Schneidemulsion üblicher Zusammensetzung.A cylindrical insertion hole 28 is made in the turret 14 in the middle of each clamping surface 26. In the example shown, the geometric axes of all insertion holes 28 intersect the turret axis 16 at a right angle. At a short distance parallel to each insertion hole 28, a bore 32 is arranged in the turret 14, which is connected to a coolant pump, not shown. This promotes, for example, a cutting emulsion of the usual composition.

An den Aufspannflächen 26 des Revolverkopfes 14 lassen sich bis zu zwölf Werkzeughalter befestigen; in Fig. 1 bis 6 ist ein Beispiel eines solchen Werkzeughalters 34 dar­gestellt.Up to twelve tool holders can be attached to the clamping surfaces 26 of the turret 14; 1 to 6 show an example of such a tool holder 34.

Der Werkzeughalter 34 hat ein im wesentlichen quaderförmi­ges Gehäuse 36 mit einer ebenen Anlagefläche 38, von der sich mittig und rechtwinklig ein Schaft 40 wegerstreckt. Der Schaft 40 paßt in jedes der Einstecklöcher 28 des Revolverkopfes 14; im montierten Zustand des Werkzeug­halters 34 liegt dessen Anlagefläche 38 an der Aufspann­fläche 26 rings um das betreffende Einsteckloch 28 voll­flächig an. Zum Befestigen des Schafts 40 ist im Revolver­kopf 14 tangential zu jedem Einsteckloch 28 eine Befesti­gungsbohrung 42 angeordnet; in dieser ist mittels einer Spannschraube 44 ein keilförmiger Bolzen 46 befestigt, der verzahnt ist und in eine zahnstangenartige Verzahnung 48 des betreffenden Schafts 40 eingreift.The tool holder 34 has a substantially cuboid housing 36 with a flat contact surface 38, from which a shaft 40 extends in the middle and at right angles. The shaft 40 fits into each of the insertion holes 28 of the turret 14; in the assembled state of the tool holder 34, its contact surface 38 bears on the clamping surface 26 all around the respective insertion hole 28. For fastening the shaft 40, a fastening bore 42 is arranged tangentially to each insertion hole 28 in the turret 14; in this a wedge-shaped bolt 46 is fastened by means of a clamping screw 44, which is toothed and engages in a rack-like toothing 48 of the relevant shaft 40.

Soweit bisher beschrieben, sind der Werkzeughalter 34 und seine Befestigung am Revolverkopf 14 bekannt; sie entspre­chen der Norm DIN 69 880.So far, the tool holder 34 and its attachment to the turret 14 are known; they comply with the DIN 69 880 standard.

Erfindungsgemäß weist der Schaft 40 des dargestellten Werkzeughalters 34 diametral gegenüber der Verzahnung 48, also gegenüber dieser um 1800 versetzt, eine weitere, vollständig gleiche Verzahnung 48 auf. Infolgedessen läßt sich der Werkzeughalter 34 wahlweise in der aus Fig. 1 ersichtlichen Stellung oder in einer bezilglich der Achse des gewählten Einstecklochs 28 um 180° gedrehten Stel­lung am Revolverkopf 14 befestigen.According to the invention, the shank 40 of the tool holder 34 shown has a further, completely identical toothing 48 diametrically opposite the toothing 48, that is to say offset from it by 1800. As a result, the tool holder 34 can be attached to the turret 14 either in the position shown in FIG. 1 or in a position rotated by 180 ° with respect to the axis of the selected insertion hole 28.

Von der Anlagefläche 38 des Gehäuses 36 gehen zwei Kühl­mittelkanäle 49 aus, die in bezug auf den Schaft 40 ein­ander diametral gegenüberliegen. Die Kühlmittelkanäle 49 sind so angeordnet, daß in jeder der beiden möglichen Stellungen des Werkzeughalters 34 einer dieser Kühlmittel­kanäle 49 an die Bohrung 32 angeschlossen ist, die in der zugehörigen Aufspannfläche 26 mündet. An die beiden Kühl­mittelkanäle 49 ist eine Kühlmitteldüse 50 angeschlossen, die in das Gehäuse 36 eingeschraubt ist. Die Kühlmittel­düse 50 kann somit in jeder der beiden Stellungen des Werkzeughalters 34 über die zugehörige Bohrung 32 mit einem Kühlmittel versorgt werden. In der Bohrung 32 kann eine Paßhülse 51 stecken, die je nach Anordnung des Werk­zeughalters 34 in den einen oder anderen seiner beiden Kühlmittelkanäle 49 eingreift und dadurch den Werkzeug­halter 34 gegen Verdrehen sichert.Two coolant channels 49 extend from the contact surface 38 of the housing 36 and are diametrically opposite one another with respect to the shaft 40. The coolant channels 49 are arranged so that in each of the two possible positions of the tool holder 34 one of these coolant channels 49 is connected to the bore 32 which opens into the associated clamping surface 26. A coolant nozzle 50, which is screwed into the housing 36, is connected to the two coolant channels 49. The coolant nozzle 50 can thus be supplied with a coolant in each of the two positions of the tool holder 34 via the associated bore 32. In the bore 32, a fitting sleeve 51 can be inserted which, depending on the arrangement of the tool holder 34, engages in one or the other of its two coolant channels 49 and thereby secures the tool holder 34 against rotation.

Im Gehäuse 36 und im Schaft 40 des Werkzeughalters 34 ist gleichachsig mit dem Schaft 40 eine Spindel 52 gelagert, die an ihren beiden Enden je ein Zahnrad 53 bzw. 54 trägt; im dargestellten Beispiel sind beide Kegelräder. Quer zur Spindel 52 ist im Gehäuse 36 eine Einspannvorrichtung 56 gelagert; deren Achse 58 die Achse des Schafts 40 unter einem rechten Winkel schneidet. An der Einspannvorrichtung 56 ist ein Kegelrad 60 ausgebildet, das mit dem Kegelrad 54 kämmt. In der Einspannvorrichtung 56 ist ein Werkzeug 62, im dargestellten Beispiel ein Bohrer, gespannt.In the housing 36 and in the shank 40 of the tool holder 34, a spindle 52 is mounted coaxially with the shank 40 and carries a gear 53 and 54 at both ends thereof; in the example shown, both are bevel gears. A clamping device 56 is mounted transversely to the spindle 52 in the housing 36; whose axis 58 intersects the axis of the shaft 40 at a right angle. A bevel gear 60, which meshes with the bevel gear 54, is formed on the clamping device 56. A tool 62, in the example shown a drill, is clamped in the clamping device 56.

Die Befestigung des Schafts 40 mittels des Bolzens 46 ge­nügt zwar, um die Anlagefläche 38 des Werkzeughalters 34 an der gewählten Aufspannfläche 26 des Revolverkopfes 14 fest anliegend zu halten; für eine präzise Ausrichtung des Werkzeugs 62 besteht damit jedoch noch keine ausreichende Gewähr. Nach dem erwähnten Normblatt DIN 69880 soll des­halb in der Bohrung 32 die erwähnte Paßhülse 51 stecken, die mit enger Passung in eine entsprechende Bohrung im Gehäuse 36 des Werkzeughalters 34 eingreift und diesen in einer vorbestimmten Winkelstellung in bezug auf die Achse 30 festlegen soll. Die Paßhülse 51 ist jedoch gegen Quer­kräfte und Biegemomente nicht besonders widerstandsfähig. Starke Belastungen des Werkzeughalters 34 durch Zerspa­nungskräfte gönnen deshalb dazu führen, daß das Werkzeug 62 nicht genau in der gewünschten Richtung - in der Regel parallel zur Z-Achse - stehenbleibt. Deshalb wird die Paß­hülse 51 durch die folgenden Maßnahmen ergänzt, die es ermöglichen, den Werkzeughalter 34, und somit das Werkzeug 62, mit höchster Genauigkeit einzustellen und sicher fest­zuhalten.The attachment of the shaft 40 by means of the bolt 46 is sufficient to hold the contact surface 38 of the tool holder 34 firmly against the selected mounting surface 26 of the turret 14; however, there is still no sufficient guarantee for a precise alignment of the tool 62. According to the aforementioned standard sheet DIN 69880, the fitting sleeve 51 should therefore be inserted in the bore 32, which engages with a close fit in a corresponding bore in the housing 36 of the tool holder 34 and this in a predetermined angular position with respect to the axis 30 should set. The adapter sleeve 51, however, is not particularly resistant to transverse forces and bending moments. Heavy loads on the tool holder 34 by cutting forces can therefore result in the tool 62 not stopping exactly in the desired direction - as a rule parallel to the Z axis. Therefore, the adapter sleeve 51 is supplemented by the following measures, which make it possible to set the tool holder 34, and thus the tool 62, with the greatest accuracy and to hold it securely.

Das Gehäuse 36 des Werkzeughalters 34 hat an seinen beiden Stirnseiten 64, die mit je einer der Stirnflächen 18 und des Revolverkopfes 14 mindestens annähernd in einer gemeinsamen Ebene liegen, je einen seitlichen Ansatz 66, von dem aus ein Einstellglied 68 gegen den benachbarten Stirnflächenrand 22 bzw. 24 des Revolverkopfes 14 spannbar ist. Die Einstellglieder 68 sind im dargestellten Beispiel Schrauben, die rechtwinklig zum zugehörigen Stirnflächen­rand 22 bzw. 24 in den betreffenden Ansatz 66 einge­schraubt sind. Jeder Ansatz 66 hat einen federnden Vor­sprung 70, durch den das zugehörige Einstellglied 68 hin­durchgeschraubt ist, und der durch eine Madenschraube 71 unter axialer Spannung gehalten ist, so daß das Einstell­glied 68 gegen unbeabsichtigtes Drehen gesichert ist.The housing 36 of the tool holder 34 has on its two end faces 64, each with one of the end faces 18 and the turret 14 at least approximately in a common plane, a lateral extension 66, from which an adjusting member 68 against the adjacent end face edge 22 or 24 of the turret 14 can be clamped. In the example shown, the setting members 68 are screws which are screwed into the relevant extension 66 at right angles to the associated end face edge 22 or 24. Each extension 66 has a resilient projection 70, through which the associated adjusting member 68 is screwed, and which is held under axial tension by a grub screw 71, so that the adjusting member 68 is secured against unintentional rotation.

Die Ansätze 66 können einstückig am Gehäuse 36 ausgebildet sein; im dargestellten Beispiel handelt es sich jedoch um getrennte Bauteile, die mit je einer Schraube 72 am Gehäu­se 36 befestigt sind und je eine Fußrippe 74 aufweisen, die in eine komplementäre Nut 76 an der betreffenden Stirnseite 64 des Gehäuses 36 eingreift, wodurch der Ansatz 66 daran gehindert ist, sich um die Schraube 72 zu drehen.The lugs 66 can be integrally formed on the housing 36; in the example shown, however, there are separate components which are each fastened to the housing 36 with a screw 72 and each have a foot rib 74 which engages in a complementary groove 76 on the relevant end face 64 of the housing 36, as a result of which the attachment 66 is attached to it is prevented from rotating about the screw 72.

Die beiden seitlichen Ansätze 66 sind gemäß Fig. 3 auf einer und derselben Seite der gemeinsamen Ebene der beiden Achsen 30 und 58 angeordnet. Deshalb bewirkt ein Spannen des in Fig. 3 rechten Einstellgliedes 68 eine Schwenkung des Werkzeughalters 34 im Uhrzeigersinn, während ein Spannen des in Fig. 3 linken Einstellgliedes 68 eine Schwenkung entgegen dem Uhrzeigersinn bewirkt. Mit den Einstellgliedern 68 beider seitlichen Ansätze 66 läßt sich somit der Werkzeughalter 34 so einstellen, daß das Werk­zeug 62 genau in der gewünschten Weise ausgerichtet ist, insbes. parallel zur Z-Achse.3, the two side lugs 66 are arranged on one and the same side of the common plane of the two axes 30 and 58. Therefore, tensioning the right setting member 68 in FIG. 3 causes the tool holder 34 to pivot clockwise, while tensioning the left setting member 68 in FIG. 3 causes it to pivot counterclockwise. With the setting members 68 of both side lugs 66, the tool holder 34 can thus be adjusted so that the tool 62 is aligned exactly in the desired manner, in particular parallel to the Z axis.

Die Genauigkeit dieser Ausrichtung geht nicht verloren, wenn der Werkzeughalter 34 vom Revolverkopf 14 getrennt und später wieder an derselben oder einer anderen Auf­spannfläche 26 des Revolverkopfes 14 befestigt wird. An den Einstellgliedern 68 braucht dabei nichts geändert zu werden, da sie mit je einem der schrägen Stirnflächenrän­der 22 und 24 zusammenwirken und deshalb das Abnehmen und Wiederanbringen des Werkzeughalters 34 nicht behindern. Wenn die Einstellglieder 68 vorhanden und eingestellt sind, kann die Paßhülse 51 mit verhältnismäßig loser Fas­sung in den einen oder anderen Kühlmittelkanal 49 eingrei­fen, da sie nur noch zum Einleiten von Kühlflüssigkeit in den Werkzeughalter 34 dient.The accuracy of this alignment is not lost if the tool holder 34 is separated from the turret 14 and later attached to the same or another clamping surface 26 of the turret 14. Nothing needs to be changed on the adjusting members 68, since they interact with one of the inclined end face edges 22 and 24 and therefore do not impede the removal and reinstallation of the tool holder 34. If the adjusting members 68 are present and adjusted, the adapter sleeve 51 can engage in one or the other coolant channel 49 with a relatively loose fitting, since it only serves to introduce coolant into the tool holder 34.

Das in bezug auf den Revolverkopf 14 radial innere Zahnrad 53 der Spindel 52 kämmt in einer Betriebsstellung gemäß Fig. 1 und 6 mit einem ebenfalls als Kegelrad ausgebilde­ten Zahnrad 78 an einem Ende einer Antriebswelle 80, die im Revolverkörper 10 parallel zur Revolverachse 16 gela­gert und über ein an ihrem anderen Ende ausgebildetes, schrägverzahntes Zahnrad 82 von einem ebenfalls schrägver­zahnten zentralen Zahnrad 84 antreibbar ist. Das zentrale Zahnrad 84 ist auf einem Wellenzapfen 86 des Revolver­ kopfes 14 gelagert und von einem nicht dargestellten An­trieb über eine Gelenkwelle 88 und ein im Revolverkörper gelagertes Ritzel 90 antreibbar.The radially inner gear 53 of the spindle 52 with respect to the turret 14 meshes in an operating position according to FIGS. 1 and 6 with a gear 78, also designed as a bevel gear, at one end of a drive shaft 80, which is mounted in the turret body 10 parallel to the turret axis 16 and over a helical gear 82 formed at its other end can be driven by a central gear 84, which is also helically toothed. The central gear 84 is on a shaft journal 86 of the turret Head 14 mounted and driven by a drive, not shown, via an articulated shaft 88 and a pinion 90 mounted in the turret body.

Die Antriebswelle 80 ist zusammen mit einem Ring 92 im Revolverkörper 10 axial verschiebbar. Am Ring 92 sind, einander in bezug auf die Antriebswelle 80 diametral gegenüber, zwei Kolben 94 befestigt, die in je einer Zylinderbohrung 96 arbeiten. Die beiden Zylinderbohrungen 96 enthalten je eine Feder 98, die bestrebt ist, die Kol­ben 94, und somit auch die Antriebswelle 80, in ihrer ab­gebildeten Stellung zu halten, in der die beiden Zahnräder 53 und 78 miteinander in Eingriff stehen, die Spindel 52 also mit der Antriebswelle 80 gekuppelt ist. In dieser Stellung wird die Antriebswelle 80 im Betrieb dadurch festgehalten, daß in die beiden Zylinderbohrungen 96 ein Fluid unter Druck eingeleitet wird.The drive shaft 80 is axially displaceable together with a ring 92 in the turret body 10. On the ring 92, diametrically opposite each other with respect to the drive shaft 80, two pistons 94 are fastened, each of which works in a cylinder bore 96. The two cylinder bores 96 each contain a spring 98 which strives to hold the pistons 94, and thus also the drive shaft 80, in their position shown, in which the two gear wheels 53 and 78 are in engagement with one another, that is to say the spindle 52 the drive shaft 80 is coupled. In this position, the drive shaft 80 is held in operation in that a fluid under pressure is introduced into the two cylinder bores 96.

An einem der beiden Kolben 94 ist eine Einstellschraube 100 befestigt, die einem Sensor 102 zugeordnet ist. Erst wenn die Antriebswelle 80 ihre eingerückte Stellung ein­nimmt, gibt der Sensor 102 ein Signal ab, das tiber ein nicht dargestelltes Ventil das Fluid unter Druck in die beiden Zylinderbohrungen 96 einströmen läßt. Das Einrücken selbst wird also nur von den verhältnismäßig schwachen Federn 98 bewirkt.An adjusting screw 100, which is assigned to a sensor 102, is fastened to one of the two pistons 94. Only when the drive shaft 80 assumes its engaged position does the sensor 102 emit a signal which allows the fluid to flow into the two cylinder bores 96 under pressure via a valve (not shown). The indentation itself is therefore only effected by the relatively weak springs 98.

Claims (4)

1. Werkzeugträgeranordnung, insbes. für Drehmaschinen, mit
- einem Werkzeugträger, insbes. Revolverkopf (14), der zwischen zwei Stirnflächen (18, 20) mehrere Aufspann­flächen (26) aufweist, von denen je ein Einsteckloch (28) ausgeht,
- mehreren auswechselbaren Werkzeughaltern (34), die je ein Gehäuse (36) mit einer Anlagefläche (38) zum Anlegen an eine der Aufspannflächen (26) sowie je einen Schaft (40) zum Einstecken in je eines der Einstecklöcher (28) aufweisen, und
- Schaftspannern (44, 46), die je einem der Einstecklöcher (28) zugeordnet und zum Festziehen eines eingesteckten Schafts (40) ausgebildet sind,
dadurch gekennzeichnet, daß
- mindestens einer der Werkzeughalter (34) zwei seitliche Ansätze (66) aufweist, die über je einen Stirnflächenrand (22, 24) des Werkzeugträgers (14) greifen und sich an ihm abstützen, und
- an jedem der seitlichen Ansätze (66) ein Einstellglied (68) gelagert ist, das gegen den benachbarten Stirnflä­chenrand (22, 24) des Werkzeugträgers (14) spannbar und derart angeordnet ist, daß es in gespanntem Zustand eine in bezug auf den zugehörigen Schaft (40) exzentrische Reaktionskraft auf den Werkzeughalter (34) ausübt.1. Tool carrier arrangement, in particular for lathes, with
a tool carrier, in particular a turret (14), which has a plurality of clamping surfaces (26) between two end faces (18, 20), each of which has an insertion hole (28),
- Several interchangeable tool holders (34), each having a housing (36) with a contact surface (38) for contacting one of the clamping surfaces (26) and a shaft (40) for insertion into one of the insertion holes (28), and
- shaft tensioners (44, 46), each assigned to one of the insertion holes (28) and designed to tighten an inserted shaft (40),
characterized in that
- At least one of the tool holders (34) has two lateral lugs (66) which grip over each end face edge (22, 24) of the tool carrier (14) and are supported on it, and
- On each of the side lugs (66), an adjusting member (68) is mounted, which can be tensioned against the adjacent end face edge (22, 24) of the tool carrier (14) and is arranged such that it is in a tensioned state with respect to the associated shaft (40) exerts eccentric reaction force on the tool holder (34). 2. Werkzeugträgeranordnung nach Anspruch 1,
dadurch gekennzeichnet, daß die Stirnflä­chenränder (22, 24) des Werkzeugträgers (14) in ihren mit den Einstellgliedern (68) zusammenwirkenden Bereichen radial nach außen konvergierende Schrägflächen sind.2. Tool carrier arrangement according to claim 1,
characterized in that the end face edges (22, 24) of the tool carrier (14) in their regions interacting with the setting members (68) are inclined surfaces which converge radially outwards. 3.Werkzeugträgeranordnung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Einstell­glieder (68) Schrauben sind.3. Tool carrier arrangement according to claim 1 or 2,
characterized in that the adjusting members (68) are screws. 4. Werkzeugträgeranordnung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß jeder mit seitlichen Ansätzen (66) versehene Werkzeughalter (34) eine Einspannvorrichtung (56) für ein Werkzeug (62) auf­weist, dessen Achse (58) die Achse (30) des Schafts (40) rechtwinklig schneidet, und daß die seitlichen Ansätze (66) beide auf derselben Seite der gemeinsamen Ebene die­ser beiden Achsen (30, 58) angeordnet sind.4. Tool carrier arrangement according to one of claims 1 to 3,
characterized in that each tool holder (34) provided with lateral lugs (66) has a clamping device (56) for a tool (62) whose axis (58) intersects the axis (30) of the shank (40) at right angles, and that lateral lugs (66) are both arranged on the same side of the common plane of these two axes (30, 58).
EP90117174A 1989-09-07 1990-09-06 Toolholder for a machine tool, especially for turning machines, with interchangeable tool holder Expired - Lifetime EP0416610B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929802A DE3929802C1 (en) 1989-09-07 1989-09-07
DE3929802 1989-09-07

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EP0962280A2 (en) * 1998-06-03 1999-12-08 Sauter Feinmechanik GmbH Alignment device
EP1559490A2 (en) * 2004-01-30 2005-08-03 Index-Werke Gmbh & Co. Kg Hahn & Tessky Tool holder
EP3698906A1 (en) * 2019-02-25 2020-08-26 Index-Werke GmbH & Co. KG Hahn & Tessky Tool carrier and tool holder
CN113843425A (en) * 2021-10-18 2021-12-28 中山市捷上同程数控机床有限公司 A dual-cutter synchronous adjustment servo turret

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DE19931913B4 (en) * 1999-07-08 2006-06-29 Ews Werkzeugfabrik Weigele Gmbh & Co. Kg Tool holder and method for its production and positioning
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DE10336220B3 (en) * 2003-08-07 2005-02-17 Wendel Gmbh Werkzeugbau Tool holder for rotary machine tool has two parallel saw cuts transverse to longitudinal axis with webs offset from each other by 90 degrees
DE102005002093B3 (en) * 2005-01-14 2006-08-10 Esa Eppinger Gmbh Tool carrier system especially for turning machines or suchlike has unit for stabilizing of tool holders in respective housing with regard to tool carrier with individual support means extending between two spaced apart tool holders
DE102007057640B3 (en) 2007-11-28 2009-04-02 Esa Eppinger Gmbh Tool clamping device for tool holder of star wheel turret, has spring elements through which stopping unit with holder is held under tension in lateral arrangement at contact surface, where holder is inserted in retainer of tool carrier
DE102007062086B3 (en) * 2007-12-21 2009-08-06 Wto Werkzeug-Einrichtungen Gmbh Tool/tool holder for processing workpiece in lathe, has spring element building up force between shaft and borehole during insertion of shaft into borehole, so that stop elements are compressed between tool/tool holder and fixture
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DE102012200266B4 (en) * 2012-01-10 2014-04-24 Apex Dynamics Inc. Engagement device for a tool holder of a rotatable tool turret
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EP0962280A2 (en) * 1998-06-03 1999-12-08 Sauter Feinmechanik GmbH Alignment device
EP0962280A3 (en) * 1998-06-03 2002-05-15 Sauter Feinmechanik GmbH Alignment device
EP1559490A2 (en) * 2004-01-30 2005-08-03 Index-Werke Gmbh & Co. Kg Hahn & Tessky Tool holder
EP1559490A3 (en) * 2004-01-30 2010-01-06 Index-Werke Gmbh & Co. Kg Hahn & Tessky Tool holder
EP3698906A1 (en) * 2019-02-25 2020-08-26 Index-Werke GmbH & Co. KG Hahn & Tessky Tool carrier and tool holder
CN113843425A (en) * 2021-10-18 2021-12-28 中山市捷上同程数控机床有限公司 A dual-cutter synchronous adjustment servo turret
CN113843425B (en) * 2021-10-18 2023-08-22 中山市捷上同程数控机床有限公司 Double-cutter-disc synchronous adjusting servo cutter tower

Also Published As

Publication number Publication date
DE3929802C1 (en) 1990-11-15
BR9004446A (en) 1991-09-10
DE59002291D1 (en) 1993-09-16
ES2043204T3 (en) 1993-12-16
EP0416610B1 (en) 1993-08-11

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